What is CVE-2021-28972?

CVE-2021-28972 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10. CVE-2021-28972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-28972?

CVE-2021-28972 has a CVSS score of 6.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-28972?

No patch is currently available for CVE-2021-28972. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-28972 actively exploited?

CVE-2021-28972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-28972

Medium

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.

Package Linux Kernel

Published 2021-03-22

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-120

CVE-2021-28972 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-28972 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Details

CVE ID CVE-2021-28972

Severity Medium

CVSS score 6.7 / 10

CVSS version 3.1

Published 2021-03-22

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-28972?

CVE-2021-28972 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10 . CVE-2021-28972 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-28972?

CVE-2021-28972 has a CVSS score of 6.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-28972?

No patch is currently available for CVE-2021-28972. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-28972 actively exploited?

No — CVE-2021-28972 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.